Assign zero to strings that don't appear in block, store result in AWK array Post: 302567195

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Top Forums Shell Programming and Scripting Assign zero to strings that don't appear in block, store result in AWK array Post 302567195 by Ophiuchus on Sunday 23rd of October 2011 02:10:49 AM

10-23-2011

Registered User

Hi ahamed and agama,

Thanks for your help, both work just great!.

But how can I include it in the first part of the main awk code I already have?

I would like to have the array with the output of your codes indexed numerically in ascending order from 1 to last element.

My code looks like this:

Code:

awk 'NR==FNR{
        if($0 ~ /XYZ/){Var1++} #Counting occurences of "XYZ" and storing in Var1
        if($0 ~ /<x "/){           
            A[1 + c++]=gensub(/(.+")([0-9]+)(">)(.+)(<\/.+)/, "\\2|\\4", "g")  # I would like your output in this array
            
            B[gensub(/pattern/,"how","g")] #Storing desired data in array B
            C[gensub(/pattern/,"how","g")] # #Storing desired data in array C
            D[1 + c++]=gensub(/pattern/, "\\2|\\4", "g") # #Storing desired data in array D
        }
next}
{
        some other code
} 
END{
    for ( i=1;i<=N;i++ ) { #Loop for printing values of 4 arrays after some manipulations
        some code to manipulate 4 arrays created when NR=FNR
    }
}' file1 file2

As you can see in the code, the data stored in array A (in red) is given by the "gensub()" function and the array is indexed
from 1 to last element.

Then, I would like to have inside the array A the ouptut of your codes insted of output of gensub(). Is possible only to generate
data of A in that way to use it later in my code?

Something like:

Code:

awk 'NR==FNR{
        if($0 ~ /XYZ/){Var1++}
        if($0 ~ /<x "/){
            A[1 + c++]="new output" # (new output = output generated by your codes)
            
            B[gensub(/pattern/,"how","g")] ...
            C[gensub(/pattern/,"how","g")] ...
            D[1 + c++]=gensub(/pattern/, "\\2|\\4", "g") ..
        }
.
.
.

Thanks for help so far.

Last edited by Ophiuchus; 10-23-2011 at 03:15 AM..

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LEARN ABOUT FREEBSD

getgrouplist

GETGROUPLIST(3) 					   BSD Library Functions Manual 					   GETGROUPLIST(3)

NAME

     getgrouplist -- calculate group access list

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     int
     getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroups);

DESCRIPTION

     The getgrouplist() function reads through the group file and calculates the group access list for the user specified in name.  The basegid is
     automatically included in the groups list.  Typically this value is given as the group number from the password file.

     The resulting group list is returned in the array pointed to by groups.  The caller specifies the size of the groups array in the integer
     pointed to by ngroups; the actual number of groups found is returned in ngroups.

RETURN VALUES

     The getgrouplist() function returns 0 on success and -1 if the size of the group list is too small to hold all the user's groups.	Here, the
     group array will be filled with as many groups as will fit.

FILES

     /etc/group  group membership list

SEE ALSO

     setgroups(2), initgroups(3)

HISTORY

     The getgrouplist() function first appeared in 4.4BSD.

BSD
								 October 26, 2014							       BSD

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